Adding a rule in the Makefile to run valgrind on the rocksdb tests

Summary: Added automated valgrind testing for rocksdb by adding valgrind_check in the Makefile

Test Plan: make clean; make all check

Reviewers: dhruba, sheki, MarkCallaghan, zshao

Reviewed By: sheki

CC: leveldb

Differential Revision: https://reviews.facebook.net/D8787

Makefile

@@ -113,6 +113,9 @@ check: all $(PROGRAMS) $(TESTS) $(TOOLS) ldb_tests
 ldb_tests: all $(PROGRAMS) $(TOOLS)
 	python tools/ldb_test.py
 
+valgrind_check: all $(PROGRAMS) $(TESTS)
+	for t in $(TESTS); do valgrind ./$$t || exit 1; done
+
 clean:
 	-rm -f $(PROGRAMS) $(BENCHMARKS) $(LIBRARY) $(SHARED) $(MEMENVLIBRARY) $(THRIFTSERVER) */*.o */*/*.o ios-x86/*/*.o ios-arm/*/*.o build_config.mk
 	-rm -rf ios-x86/* ios-arm/*